High-speed isolated port

Details High-speed isolated port High-speed isolated port

2005-12-20

2005-12-20

Lam, Tuan T. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

External effect

Light

C327S333000

Reexamination Certificate

active

06977540

ABSTRACT:
A port isolator apparatus includes an optical isolator circuit that electrically isolates an input circuit from a high-speed output circuit. The input circuit uses a transistor to control the current flow of a data signal into the optical isolator. The optical isolator generates, from the data signal, an output signal that controls the high-speed output circuit in the regeneration of the output signal. The output signal is substantially similar to the input data signal. The input circuit and the optical isolator circuit are coupled to one power and ground circuit while the high-speed output circuit is coupled to a second power and ground circuit that is isolated from the first power and ground circuit.

REFERENCES:
patent: 3742947 (1973-07-01), Hashem
patent: 3811094 (1974-05-01), Lee
patent: 3867567 (1975-02-01), Herron et al.
patent: 3902060 (1975-08-01), Neuner et al.
patent: 3912951 (1975-10-01), Kihara
patent: 4056719 (1977-11-01), Waaben
patent: 4081787 (1978-03-01), Lee
patent: 4143287 (1979-03-01), Biggs
patent: 4355237 (1982-10-01), Harris, Jr.

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